Weijia Wang Lei Hu Yong Li 0002 Provably Secure N-Party Authenticated Key Exchange in the Multicast DPWA Setting. 93-107 2007 Inscrypt http://dx.doi.org/10.1007/978-3-540-79499-8_9 conf/cisc/2008 db/conf/cisc/inscrypt2008.html#WangHL08